1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
3 * VFIO Region definitions for ZPCI devices
5 * Copyright IBM Corp. 2020
7 * Author(s): Pierre Morel <pmorel@linux.ibm.com>
8 * Matthew Rosato <mjrosato@linux.ibm.com>
14 #include <linux/types.h>
15 #include <linux/vfio.h>
18 * VFIO_DEVICE_INFO_CAP_ZPCI_BASE - Base PCI Function information
20 * This capability provides a set of descriptive information about the
21 * associated PCI function.
23 struct vfio_device_info_cap_zpci_base
{
24 struct vfio_info_cap_header header
;
25 __u64 start_dma
; /* Start of available DMA addresses */
26 __u64 end_dma
; /* End of available DMA addresses */
27 __u16 pchid
; /* Physical Channel ID */
28 __u16 vfn
; /* Virtual function number */
29 __u16 fmb_length
; /* Measurement Block Length (in bytes) */
30 __u8 pft
; /* PCI Function Type */
31 __u8 gid
; /* PCI function group ID */
35 * VFIO_DEVICE_INFO_CAP_ZPCI_GROUP - Base PCI Function Group information
37 * This capability provides a set of descriptive information about the group of
38 * PCI functions that the associated device belongs to.
40 struct vfio_device_info_cap_zpci_group
{
41 struct vfio_info_cap_header header
;
42 __u64 dasm
; /* DMA Address space mask */
43 __u64 msi_addr
; /* MSI address */
45 #define VFIO_DEVICE_INFO_ZPCI_FLAG_REFRESH 1 /* Program-specified TLB refresh */
46 __u16 mui
; /* Measurement Block Update Interval */
47 __u16 noi
; /* Maximum number of MSIs */
48 __u16 maxstbl
; /* Maximum Store Block Length */
49 __u8 version
; /* Supported PCI Version */
53 * VFIO_DEVICE_INFO_CAP_ZPCI_UTIL - Utility String
55 * This capability provides the utility string for the associated device, which
56 * is a device identifier string made up of EBCDID characters. 'size' specifies
57 * the length of 'util_str'.
59 struct vfio_device_info_cap_zpci_util
{
60 struct vfio_info_cap_header header
;
66 * VFIO_DEVICE_INFO_CAP_ZPCI_PFIP - PCI Function Path
68 * This capability provides the PCI function path string, which is an identifier
69 * that describes the internal hardware path of the device. 'size' specifies
70 * the length of 'pfip'.
72 struct vfio_device_info_cap_zpci_pfip
{
73 struct vfio_info_cap_header header
;